Answers for "sql how to get number of columns"

get columns number sql

#With SQL

SELECT count(*)
FROM information_schema.columns
WHERE table_name = 'Your_table_name';

get columns number sql

//With JAVA

String quer="SELECT * FROM sample2 where 1=2";

Statement st=con.createStatement();
ResultSet rs=st.executeQuery(quer);
ResultSetMetaData rsmd = rs.getMetaData();
int NumOfCol=0;
NumOfCol=rsmd.getColumnCount();
System.out.println("Query Executed!! No of Colm="+NumOfCol);